Dhiraj Soni

• Username: 2★n3gativ3
• Country:  India
• Student/Professional:Student
• Institution:Birla Institute of Technology Mesra Ranchi, Jharkhand, India
• CodeChef Pro Plan: No Active Plan. View Details

Submissions Heat Map

Last 6 Months 2026 (Jan-Jun)2025 (Jul-Dec)2025 (Jan-Jun)

Rating Graph

No. of Contests Participated: 34

Current Ratings Graph Old Ratings Graph

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March Challenge 2021 Division 2(2021-03-15 15:00:02)

Global Rank:   5343

Cheated in:   

Ratings System Update

(2021-03-15 15:00:02)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

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1447 (-53)RatingProvisional
Rating i Provisional Rating, click to know more

March Challenge 2021 Division 2(2022-12-20 00:00:00)

Global Rank:   5343

Cheated in:   

Ratings System Update

(2022-12-20 00:00:00)

This is the difference due to changing the rating system.This graph is not updated after 20th Dec 2022. Know more

How the rating system works?

Learning Paths (0)

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Practice Paths (0)

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Contests (34)

July Challenge 2013

Chef and Walking on the rectangle , The Probability Of Winning

August Challenge 2013

Hello Hello, Deleting numbers, Splitting Candies, Little Elephant and Lemonade

February Challenge 2014

Longest Common Pattern

April Challenge 2014

Farmer Feb

August Challenge 2014

The Leaking Robot, Chef and Gift

September Challenge 2014

Chef and Left-Right

November Challenge 2014

Chef and Segment Game, Distinct Characters Subsequence, Let us construct palindrome

December Challenge 2014

Chef and Apple Trees

May Lunchtime 2014

Approximately II

August Lunchtime 2014

Harrenhal

January Challenge 2015

Chef and A Large Permutation, One Dimensional Kingdoms, Sereja and Votes, Chef and Stones

January Cook-Off 2015

Suraj goes shopping

January Lunchtime 2015

Piece of cake

February Challenge 2015

Chef and Chain, Chef and Strange Formula, Let us play with rank list, Chef and Equality

March Challenge 2015

Sign Wave

May Challenge 2015

Devu and binary String, Chef and Prime Divisors, Set Difference , Chef and new recipe

June Challenge 2015

Chef and Polygons, Steady tables, Chef and Memory Limit

May Cook-Off 2015

Devu and friendship testing

June Lunchtime 2015

Chef and Two Strings

January Long Challenge 2016

Rupsa and the Game

July Challenge 2016

Andrash and Stipendium

September Challenge 2016

Chef and digits of a number, Faded Palindromes, Chef and calculation

December Challenge 2016

Train Partner

February Challenge 2017

Gerrymander

April Challenge 2017

Chef and Divisor Tree, Dish Of Life, Bear and Row 01, Bear and Clique Distances, Similar Dishes

May Challenge 2017

Blocked websites

May Challenge 2018 Division 2

Mighty Friend, Dibs on Fibs, Fake Binary Search, Xor Again, Minimum Deletions

January Challenge 2019 Division 2

Yet Another Problem About Sequences, Lucky Number Game, Chef and Modulo Game, Fancy Quotes

December Challenge 2020 Division 2

Hail XOR, Positive Prefixes, Even Pair Sum, Vaccine Production, Vaccine Distribution

October Lunchtime 2020 Division 2

AND Plus OR, Chef and Subtree MEXs, Chef Likes Good Sequences

November Lunchtime 2020 Division 2

Gasoline Introduction

Total Problems Solved: 86